TY - BOOK AU - Stephens,Daniel B. TI - Vadose zone hydrology SN - 9780367448783 (pbk.) U1 - 551.49 PY - 1996/// CY - Baca Raton, Fla. PB - CRC, Lewis Publishers KW - Groundwater flow KW - Zone of aeration N1 - Includes bibliographical references and index ER -